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A high quality, PROFESSIONAL GRADE, magnetic, FLUSH mounting wired contact for intruder alarms is a very handy item as it can be used on doors as well as windows where a more asethetic finish is required. They are constructed from plastic and have 5 connection terminals, 2 for the alarm circuit and 3 for termination.
The contact provides a NORMALLY CLOSED circuit when the contact and magnetic halves are together (door shut) and when seperated the circuit is made going OPEN CIRCUIT in alarm (door open).
Main Features: